<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8">
    <title></title>
    <script>
    let title='标题';
    let content='内容';
    let str='<div>\
      <h1>'+title+'</h1>\
      <p>'+content+'</p>\
    </div>';

    let str2=`<div>
      <h1>${title}</h1>
      <p>${content}</p>
    </div>`;
    </script>
  </head>
  <body>

  </body>
</html>
